——————————————-------------
- etc/init.d/quagga is modified to support creating separate ospf daemon
process for each instance. Each individual instance is monitored by
watchquagga just like any protocol daemons.(requires initd-mi.patch).
- Vtysh is modified to able to connect to multiple daemons of the same
protocol (supported for OSPF only for now).
- ospfd is modified to remember the Instance-ID that its invoked with. For
the entire life of the process it caters to any command request that
matches that instance-ID (unless its a non instance specific command).
Routes/messages to zebra are tagged with instance-ID.
- zebra route/redistribute mechanisms are modified to work with
[protocol type + instance-id]
- bgpd now has ability to have multiple instance specific redistribution
for a protocol (OSPF only supported/tested for now).
- zlog ability to display instance-id besides the protocol/daemon name.
- Changes in other daemons are to because of the needed integration with
some of the modified APIs/routines. (Didn’t prefer replicating too many
separate instance specific APIs.)
- config/show/debug commands are modified to take instance-id argument
as appropriate.
Guidelines to start using multi-instance ospf
---------------------------------------------
The patch is backward compatible, i.e for any previous way of single ospf
deamon(router ospf <cr>) will continue to work as is, including all the
show commands etc.
To enable multiple instances, do the following:
1. service quagga stop
2. Modify /etc/quagga/daemons to add instance-ids of each desired
instance in the following format:
ospfd=“yes"
ospfd_instances="1,2,3"
assuming you want to enable 3 instances with those instance ids.
3. Create corresponding ospfd config files as ospfd-1.conf, ospfd-2.conf
and ospfd-3.conf.
4. service quagga start/restart
5. Verify that the deamons are started as expected. You should see
ospfd started with -n <instance-id> option.
ps –ef | grep quagga
With that /var/run/quagga/ should have ospfd-<instance-id>.pid and
ospfd-<instance-id>/vty to each instance.
6. vtysh to work with instances as you would with any other deamons.
7. Overall most quagga semantics are the same working with the instance
deamon, like it is for any other daemon.
NOTE:
To safeguard against errors leading to too many processes getting invoked,
a hard limit on number of instance-ids is in place, currently its 5.
Allowed instance-id range is <1-65535>
Once daemons are up, show running from vtysh should show the instance-id
of each daemon as 'router ospf <instance-id>’ (without needing explicit
configuration)
Instance-id can not be changed via vtysh, other router ospf configuration
is allowed as before.
Signed-off-by: Vipin Kumar <vipin@cumulusnetworks.com>
Reviewed-by: Daniel Walton <dwalton@cumulusnetworks.com>
Reviewed-by: Dinesh G Dutt <ddutt@cumulusnetworks.com>
This commit makes the following lines visible in running-config text,
when respective intervals are configured to non-default values:
* babel hello-interval
* babel update-interval
* babel resend-delay
The primary focus of this commit is to make "show running-config"
command display more current configuration, including some of the bits
previously seen in the output of "show babel running-config". Besides
that, the following commands were renamed for consistency with the
syntax of other components:
"debug *" to "debug babel *" (and moved to top level)
"show babel running-config" to "show babel parameters"
* babel_interface.c
* show_babel_running_config(): rename to show_babel_parameters(),
update syntax pattern, don't call show_babeld_configuration()
* babel_if_init(): update respectively
* babel_enable_if_config_write(): new VTY helper for static
babel_enable_if
* babel_interface.h: add extern declaration
* babel_main.c: unset all debug options by default
* show_babel_main_configuration(): remove debug options decoder
* babel_zebra.c
* babel_debug(): rename to debug_babel(), update syntax pattern
* no_babel_debug(): rename to no_debug_babel(), update syntax pattern
* babelz_zebra_init(): update respectively
* debug_babel_config_write() new VTY helper for static debug_type
* babel_zebra.h: add extern declaration
* babeld.c
* babel_config_write(): add the code to output "debug babel *",
"router babel", "redistribute *" and "network *" statements
* show_babeld_configuration(): dismiss
* babeld.h: remove extern declaration
* babeld.texi: update for renamed commands
* babeld.conf.sample: idem, add debug statements block
Factorise the common parts of the in/out filtering functions. This also
fixes a bug with filtered out routes, which in babeld are signalled by
a filter returing INFINITY, not -1.
Babelz is the last version of the stand-alone babel daemon. In
particular, it use multiple channels to diminuate
interferences. Please refer to this one for more details.
Including system headers is not necessary with zebra.h included and
sometimes results in "__ASSERT_FUNCTION redefined" compilation warning.
* babeld.c
* babel_distribute_update_interface(): make static
* babel_interface.c
* interface_config_write(): unused 'babel_ifp'
* don't include system headers
* message.c
* send_request(): unused 'babel_ifp'
* send_multihop_request(): idem
* don't include system headers
* route.c: don't include system headers
* xroute.c: idem
* source.h: newline at EOF
* message.h: idem
* Initial import of the Babel routing protocol, ported to Quagga.
* LICENCE: Update the original LICENCE file to include all known potentially
applicable copyright claims. Ask that any future contributors to babeld/
grant MIT/X11 licence to their work.
* *.{c,h}: Add GPL headers, in according with the SFLC guidance on
dealing with potentially mixed GPL/other licensed work, at:
https://www.softwarefreedom.org/resources/2007/gpl-non-gpl-collaboration.html
